Combined regulator and brake for talking-machines.



PATBNTED MAR. 29, 1904.

W. N. DENNISON. COMBINED REGULATOR AND BRAKE FOR TALKING MAGHINBS.

Arrmonmn nun JAN. 21,1903.

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No. 755,851. PATENTED MAR. 29, 1904.

w. N. DENNISON. r COMBINED REGULATOR AND BRAKE FOR TALKING MACHINES.

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UNITED STATES Patented March 29, 1904.

PATENT OFFICE.

VVILBURN N. DENNISON, OF CAMDEN, NEW JERSEY, ASSIGNOR TO VICTOR TALKINGMACHINE COMPANY, A CORPORATION OF NEW JERSEY.

COMBINEDFIEGULATOR AND BRAKE FOR TALKING-MACHINES,

SPECIFICATION forming part of Letters Patent No. 755,851, dated March29, 1904.

l Application filed Ianuary 21, 1903. Serial No. 139,884. (No model.)

To all whom it may concern.-

Be it known that I, WILBURN N. DENNISON, a citizen of the United States,and a resident of Camden, State of New Jersey, have invented certain newand useful Improvements in a Combined Regulator and Brake for Talking-Machines, of which the following is a full, clear, and completedisclosure.

The object of my invention is to produce a regulator fortalking-machines which has in connection therewith a brake for entirelystopping or retarding said machine when changing from one sound-recordto another and when not in use; and a further object is to simplify theconstruction and make the operation more efficient and reliable thanheretofore.

Broadly, my invention consists in providing an adjustable regulatingscrew or pin which may be adjusted between certain limits at any pointdesired to produce a given speed of the talking-machine motor. Saidscrew or pin is also made movable independently of the adjusting means,so that the same can be quickly displaced to cause the governor to actas a brake, and thereby retard or stop the machine when it is desired tochange from one size of sound-record to another and when the machine isnot in use.

For a full, clear, and exact description of my invention reference maybe had to the following specification and to the accompanying drawings,forming a part thereof, in which Figure 1 is an elevation of my improvedregulator and brake. Fig. 2 is another elevation taken at substantiallyright angles to that of Fig. 1. Fig. 3 is a bottom plan view of myimprovement. Fig. 4 is an elevation similar to that of Fig. 2,- butshowing the brake portion of the device in its inoperative position; andFig. 5 is a vertical sectional view of the regulating-pin and itssupporting parts, showing the relation of the brake-lever thereto.

In the drawings the numeral 1 indicates the usual turn-table of atalking-machine, which is mounted on a vertical spindle 2. This spindlehas connection with the spring motor proper (not shown) and also isconnected with the governor or regulator by means of the gears 3 and 4,the shaft 5, the gear 6, and the gear 7, which is fixed on the shaft 7.The governor proper consists of the usual parts namely, thegovernor-balls 8, carried by the springs 9, which are attached to thefixed and slidable sleeves 10 and 11, respectively, on the shaft 7. Thesleeve 11 carries the usual brake-disk 12.

At right angles to the axis of revolution of the governor-balls 8 ismounted a shaft 13. Said shaft carries at one end an arm 14, to which ispivotally attached the yoke 15, which carries the brake-pads 16, whileat the other end of said shaft is attached the radial arm 17 Said shaft13 is supported in suitable hangers 18, which project downwardly fromthe under side of the horizontal plate 19 of the motor-frame. At onecorner of the plate 19 is fixed an L-shaped piece or bracket 20, whichcarries at a point adjacent the juncture of its two arms a short tube orhollow cylindrical piece 21. This tube projects downwardly at rightangles to the plane of the top plate 19 of the machine-frame, and theopening therein is continued upwardly through the bracket 20, asindicated in Fig. 5. Within the tube 21 is placed a cylindrical sleeve22, which has an interior screw-threaded portion at its lower end andalso carries on the exterior of its lower end a pin or projection 23.projection 23 is adapted to slide in a vertical slot 24, provided in thelower end of the tube 21, thus keeping said sleeve from turning, whileallowing it a vertical movement.

The numeral 25 indicates a screw or pin which has at its lower end ascrew-threaded portion corresponding to the screw-threaded portion ofthe sleeve 22, while at its upper end is carried a head or thumb piece26.

The bracket 20 is provided with a projection 27 which is adapted toreceive at its end a pivot-screw 28. Mounted upon said pivotscrew is alever 29, the upper end of which forms a handle andprojects through thesupporting-plate 30, asdoes also the thumb-piece 26. The lower end ofsaid lever 29 extends inwardly toward the tube 21, as indicated at 31,and then is bent downwardly to form a cam The pin or" 32. This cam 32 isarranged adjacent the pin 23, carried by the sleeve 22, in such a mannerthat the different parts of said cam will contact said pin as the leveris moved from one position to another, the parts of said cam being ofdifferent radii in respect to the axis of the pivot 28. A spring 33, oneend of which is attached to the bracket 20 and the other end to the arm17, is provided to keep said arm 17 in a normally raised position.

The operation of my device is as follows: Supposing the turn-table 1 tobe revolving and the parts to be in the position indicated in Fig. 4 andit is desired to regulate the speed of the motor and of the turn-table,the thumb-piece 26 is turned to the right or left, according to whetherit is desired to cause the motor to go more slowly or at a higher speed.By turning the thumb-piece 26 the lever 17 is adjusted, and through itsconnection with the brake-pads 16 the latter are allowed to rest more orless forcibly in contact with the brake-disk 12. hen it is desired tostop the motor, and therefore the turn-table, the lever 29 is movedtoward the right from the position indicated in Fig. 1. This allows thepin 23 to move to the lower part of the cam 32, as shown in Fig. 2, andtherefore permits the sleeve 22 and the pin 25 to be forced upwardly bythe action of the lever 17 and spring 33. The spring 33 is strong enoughto overcome the action of the governor-balls, and therefore forces thebrakepads 16 against the brake-disk 12, which causes suflicient frictionto stop the rotation of the governor. When it is again desired to startthe machine, the lever 29 is moved back into the position shown in Fig.4.

This construction is also particularly adapted for use withtalking-machines where records of different size are used. It is onlynecessary in changing from a record of small size to one of a largersize to move the lever 29 part way of its full movement, therebyallowing the pin 23 to rest upon a lower part of the cam 32, whichimmediately without further adjustment of the screw gives the requiredspeed. The required speed may there= fore be produced by moving thelever 29 a certain fraction of its throw.

Having thus described my invention, what I claim, and desire to protectby Letters Patent of the United States, is

1. A combined regulator and brake, comprising, a governor, variablemeans for regulating the speed of the governor, and separate means formoving the parts of said regulating means to cause the same to act as abrake.

2. A combined regulator and brake, comprising, a governor, variablemeans for regulating the speed of the governor, and separate means formoving said variable means and for limiting themovement thereof to causethe same to act as a brake.

3. A combined regulator and brake, comprising, a governor, arotatablyadjustable part for regulating the speed of the governor,connections between said rotatable part and the governor, and means formoving said adjustable part to stop or retard the rotation of thegovernor.

4:. A combined regulator and brake, comprising, a governor, a screw forregulating the speed of the governor, connections between said screw andgovernor, and means for moving said screw longitudinally to stop orretard the rotation of said governor.

5. A combined regulator and brake, comprising, a governor, an adjusting-screw for regulating the speed of the governor, connectionsbetween said screw and governor including frictional contacts, and meansfor moving said screw longitudinally to increase the pressure betweensaid contacts to stop or retard the rotation of the governor.

6. A combined regulator and brake, comprising, a governor, anadjusting-screw for regulating the speed of the governor, connectionsbetween said screw and governor, and means supporting said screw formoving the same longitudinally to stop or retard the rotation of saidgovernor.

7 A combined regulator and brake, comprising, a governor, anadjusting-screw for regulating the speed of the governor, connectionsbetween said screw and governor, a slidable sleeve within which saidscrew is mounted, and means for moving said sleeve longitudinally tostop orretard the rotation of said governor.

8. A combined regulator and brake, comprising, a governor, anadjusting-screw for regulating the speed of the governor, connectionsbetween said screw and governor, aslidable sleeve within which saidscrew is mounted, a fixed sleeve for holding said slidable sleeve, andmeans for limiting the movement of said slidable sleeve within saidfixed .sleeve to stop or retard the rotation of said governor.

9. A combined regulator and brake, comprising a governor, anadjusting-screw for regulating the speed of the governor, a slidablesleeve within which said screw is mounted, connections between saidscrew and governor including frictional contacts and means for movingsaid sleeve longitudinally to increase the pressure between saidcontacts 10. A combined regulator and brake comprising a governor, anadjusting-screw for regulating the speed of the governor, a slidablesleeve within which said screw is mounted, a fixed sleeve for holdingsaid slidable sleeve, an arm adapted to rest against the end of saidfixed sleex e and said screw, connections between said arm and saidgovernor including frictional contacts, means for forcing said armtoward said fixed sleeve and a camlever for moving said slidable sleevelongitudinally.

11. A combined regulator and brake comprising a governor, anadjusting-screw for IO frictional contacts, means for forcing said armtoward said fixed sleeve, and a cam-lever coritacting with said pin formoving said slidable sleeve longitudinally.

In witness whereof I have hereunto set my hand this 20th day of January,A. D. 1903.

WILBURN N. DENNISON.

Witnesses: EDW. W. VAILL, J r.,

CHAS. K. BENNETT.

